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UFC Fight Night: Florian vs Gomi
Ross Pearson
Ross Pearson
10-3 · GBR
VS
Dennis Siver
Dennis Siver
15-6 · DEU
March 31, 2010 · Charlotte, North Carolina, USA
Lightweight · 3 rounds
156.0lb
Weigh-in
156.0lb
Ross Pearson def. Dennis Siver by U-DEC, R3 5:00
Performance
Round by round
SSTDKDCtrl
R1
Pearson17/540/000:41
Siver17/760/100:05
R2
Pearson16/470/000:08
Siver10/661/200:22
R3
Pearson21/581/100:11
Siver12/831/200:44
Total
Pearson54/1591/101:00
Siver39/2252/501:11

Scorecards

Pearson vs Siver

RdAndrew Hopper Jr.Chris LeeDouglas CrosbyCommunity
R110-910-910-910-9
R210-910-910-910-9
R310-910-910-910-9
Total30-2730-2730-2730-27

Media (4 cards) · avg 3027 · 4 Pearson · 0 Siver

Official cards + public consensus via MMA Decisions. Per round: Pearson-Siver.

Pre-fight

The model's read going in

The walk-forward model's call at the time of the bout — persisted out-of-sample, with no hindsight about the result.

Prediction
PearsonWin probabilitySiver
37.9%62.1%
KO / TKO
26%
Submission
2%
Decision
72%
Expected fight time: 13.3 min
What drives the pick

Each bar is a feature's push on the model from the center axis. Red pushes toward Pearson, blue toward Siver. Tap a bar for why.

Predicted outcomes
Pearson38%
Wins by
Model
Equity
Mkt
KO / TKO7%19%
Submission1%2%
Decision30%79%
Predicted output
Sig. strikes55 (3172)act 54
Takedowns0.2 (0.00.7)act 1
Siver62%
Wins by
Model
Equity
Mkt
KO / TKO19%31%
Submission1%2%
Decision42%67%
Predicted output
Sig. strikes75 (4398)act 39
Takedowns0.2 (0.01.0)act 2
Combined totals~131 sig strikes~0.4 takedownsmkt —
How it ends
mkt —
R15%
R210%
R313%
Distance72%
Fighter props
Most sig. strikestie 0.8%
Pearson
35.3%+181
Siver
-18163.9%
Most takedownstie 67.2%
Pearson
13.6%+140
Siver
-14019.1%
Significant strikes — over/under
Pearson
Expected: 55.3
55.5
Over 55.5
42.2%
+137
Under 55.5
57.8%
-137
070139
Siver
Expected: 75.5
75.5
Over 75.5
42.5%
+135
Under 75.5
57.5%
-135
095189
Takedowns — over/under
Pearson
Expected: 0.2
0
Over 0
16.1%
Exactly 0
83.9%
push
Under 0
0.0%
035
Siver
Expected: 0.2
0
Over 0
21.4%
Exactly 0
78.6%
push
Under 0
0.0%
035

Odds are model-implied (no real prop market is priced for these). The “most” prices are draw-no-bet — a tie (for takedowns, usually 0–0) is a push, so each side is priced off its chance of winning given a result, while the % shown is the raw chance of landing strictly more. Drag a line in half-point steps: a half line (e.g. 2.5) is a clean over/under, while a whole number adds a third outcome — landing exactly on it, a push — so over, exact and under sum to 100%. On a whole number the over/under odds are draw-no-bet (priced off the decisive mass, since the push refunds), so the two sides stay mirror images rather than implying an arbitrage.

Expected fight time 13.3 min. Predicted-output ranges are percentiles of the model’s simulated fights: sig strikes the middle 50% (25th–75th); takedowns the wider 10th–90th, since they’re 0 in most fights so a narrow band would collapse to 0. Win-by-method = win probability × that fighter’s own method split: the model forecasts how the fight ends, and that forecast is divided between the corners by each fighter’s finishing record — UFC wins in full, earlier-career wins at half weight, as of fight night — reconciled so the fighters’ totals still equal their win probabilities and the methods still total the fight-level forecast above. “Equity” is each of those over that fighter’s win % — how they win given that they win — so a column adds to 100%, and it differs by corner. A fighter with no classifiable wins at any level leans on the fight-level split. “How it ends” is the model’s round-of-finish split. “Mkt” is the de-vigged market prop (consensus across books), shown for context, not as a betting signal; rounds & totals slots fill as that data lands. Percentages are apportioned by largest remainder, so each set adds to its total exactly and an individual figure can sit a point off its own rounding.

Model vs market
Final
ModelMarketGapLine
To win
Pearson37.9%65.8%−27.9-220
Siver62.1%34.2%+27.9+180

Market % is the de-vigged (no-vig) consensus across the books that price both fighters; the line is the average across books with the min–max range in parentheses. Gap is the model minus the market in points (+ = the model rates that outcome above the market). Thin or one-sided markets are flagged or left blank rather than shown as a fabricated %. Shown for context, not as a bet — the closing line is the sharpest public price and the model trails it on average. For 5-round bouts the model splits its round-3+ finish mass into rounds 3–5 by the historical within-bucket rate, so the over-3.5 / 4.5 lines carry a model estimate.

Trait web
81.2Striking63.5
Pearson +17.7
25.0Grappling32.5
Siver +7.5
Str/minStr accStr defAbsorbedTD/15TD accTD defSubs
Hover a point to see the values
PearsonSiver
Tale of the tape
Ratings (Elo)
1541
Pound-for-pound
1536
1542
Divisional
1548
1507
Striking offense
1521
1514
Striking defense
1517
1497
Grappling offense
1494
1508
Grappling defense
1494
Physical
25 yrs
Age
31 yrs
5'8"
Height
5'6"
69"
Reach
70"
Orthodox
Stance
Orthodox
Striking (UFC career)
5.40
Strikes landed / min
2.86
53%
Strike accuracy
29%
2.48
Strikes absorbed / min
2.26
62%
Strike defense
65%
Grappling (UFC career)
0.00
Takedowns / 15 min
0.61
0%
Takedown accuracy
25%
100%
Takedown defense
38%
0.0
Sub attempts / 15 min
0.6
Form & résumé
100%
UFC win rate
57%
+2
Win/loss streak
+3
100%
Last-5 win rate
60%
50%
Finish rate
100%
Recent opp. quality
137
Days since last fight
137
Recent form (last 5 UFC)
Ross Pearson
  • WAaron RileyKO/TKO R2
    Close +1655mo before
  • WAndre WinnerU-DEC R3
    Close +1989mo before
Dennis Siver
  • WPaul KellyKO/TKO R2
    Close +2755mo before
  • WDale HarttSUB R1
    Close -17810mo before
  • WNate MohrKO/TKO R3
    Close -1611y 2mo before
  • LMelvin GuillardKO/TKO R1
    Close +1781y 9mo before
  • LGray MaynardU-DEC R3
    Close +3012y 2mo before
Pearson — win / loss by method
Record: 10-3-0

Bar length is fight count (largest bar = full width); shading splits finishes by round and decisions by unanimous vs split — tap a bar for the round-by-round count.

KO/TKO
3 wins, 1 loss
W
30% of wins
L
33% of losses
Submission
5 wins, 1 loss
W
50% of wins
L
33% of losses
Decision
2 wins, 1 loss
W
20% of wins
L
33% of losses
UFC
2win0loss0draw0NC
WinsLosses
1 (50%)KO/TKO() 0
0 (0%)Submission() 0
1 (50%)Decision() 0
Non-UFC
8win3loss0draw0NC
WinsLosses
2 (25%)KO/TKO(33%) 1
5 (63%)Submission(33%) 1
1 (13%)Decision(33%) 1
Siver — win / loss by method
Record: 15-6-0

Bar length is fight count (largest bar = full width); shading splits finishes by round and decisions by unanimous vs split — tap a bar for the round-by-round count.

KO/TKO
7 wins, 1 loss
W
47% of wins
L
17% of losses
Submission
6 wins, 4 losses
W
40% of wins
L
67% of losses
Decision
2 wins, 1 loss
W
13% of wins
L
17% of losses
UFC
4win3loss0draw0NC
WinsLosses
3 (75%)KO/TKO(33%) 1
1 (25%)Submission(33%) 1
0 (0%)Decision(33%) 1
Non-UFC
11win3loss0draw0NC
WinsLosses
4 (36%)KO/TKO(0%) 0
5 (45%)Submission(100%) 3
2 (18%)Decision(0%) 0

Profiles

Experience
Pearson
Siver
2
UFC fights
7
24.6 min · 12.3 avg
Octagon time
49.0 min · 7.0 avg
21y 7m
Career length
22y 5m
UFC schedule strength

Opponents' records on fight night — toggle their full cross-promotional record vs UFC bouts only.

Pearson
Siver
39W–13L · 75.0%
Overall
78W–28L · 73.6%
39W–13L · 75.0%
Wins
41W–13L · 75.9%
0W–0L
Losses
37W–15L · 71.2%
Non-UFC schedule strength
Pearson
Siver
59W–53L · 52.7%
Overall
91W–50L · 64.5%
43W–47L · 47.8%
Wins
67W–45L · 59.8%
16W–6L · 72.7%
Losses
24W–5L · 82.8%
Distance striking
Pearson
Siver
6.69
Landed / min
4.39
39.9%
Accuracy
25.7%
85.1%
Defense
69.5%
0.00
Knockdowns / 15 min
1.22
33.4%
Time at distance
49.2%
Grappling & control
Pearson
Siver
0.00
Takedowns / 15 min
0.61
0.0%
Takedown accuracy
25.0%
100.0%
Takedown defense
37.5%
0.00
Sub attempts / 15 min
0.61
42.3%
Control share
34.9%
Strike target map
Pearson
  • Head56%(75)div 66%
  • Body33%(44)div 18%
  • Legs11%(14)div 16%
Siver
  • Head69%(96)div 66%
  • Body8%(11)div 18%
  • Legs24%(33)div 16%

Where each fighter lands significant strikes (career). “div” = the weight-class average.

Ross Pearson
CloseSSTDKDCtrl

Per-fight: SS & TD shown landed/attempted; Close = consensus closing line.

Dennis Siver
CloseSSTDKDCtrl

Per-fight: SS & TD shown landed/attempted; Close = consensus closing line.